单片机问题:内部存储单元40H中有一个ASCII码字符,试编一程序,给该数...答:调试通过!ORG 00H AJMP _INIT_SYS _INIT_SYS:MOV SP,#80H MOV 40H,#017H _MAIN:MOV A,40H LCALL _EEC MOV 40H,A AJMP _EEC:PUSH 0 PUSH 1 MOV R1,#0 MOV R0,#08H _EEC_LOOP:RRC A JNC _EEC_END_TEST INC R1 _EEC_END_TEST:DJNZ R0, _EEC_LOOP RRC A MOV R0,A MOV A...
编程同时找出最大值和最小值 单片机应用答:;如下即可:MOV R4, 20H MOV R5, 20H MOV R0, #21H MOV R2, #19 LP:MOV A, @R0 CLR C SUBB A, R4 JC NEXT MOV A, @R0 MOV R4, A NEXT:MOV A, @R0 CLR C SUBB A, R5 JNC NEXT2 MOV A, @R0 MOV R5, A NEXT2:INC R0...
protues 51单片机串口通信 显示乱码答:ORG 0000H ORL PCON, #10000000B MOV SCON, #01010010B;--原为 0111 0010 MOV TMOD, #20H MOV TH1, #-3 MOV TL1, #-3 SETB TR1 LOP:JNB RI,MOV A, SBUF CLR RI CJNE A, #'A', $ + 3 JC TTT CJNE A, #'Z'+ 1, $ + 3 JNC T...